<style>
    h1 {
        border: #454545 solid 10px;
        border-radius: 14px;
        padding: 16px;
        /* padding-top:50px;
        padding-bottom:50px;
        padding-left:50px;
        padding-right:50px; */
    }

    h2 {
        border: #454545 solid 10px;
        border-radius: 14px;
        padding: 16px;
        margin-top: 50px;
        margin-left: 50px;
        margin-bottom: 50px;
        margin-right: 50px;

    }
</style>

<body>
    <h1>你好呀😁😁</h1>
    <h2>你不好呀😥😣</h2>
</body>